Mocopan Coffee’s Jared Chapman explores the four variables of grinder calibration that impact over- and under-extracted coffee and why coffee is a game of constant tasting.
Taste. It’s what we’re all about in the coffee industry. Striving for that sweeter, more delicious cup of coffee. This has led to a lot of work being put into understanding the many variables that affect the flavour we end up with in the cup. With more information out there on variables like particle size distribution and total dissolved solids (TDS), it can be overwhelming for a budding barista to start to understand the basics without getting confused by all the detail.
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The affect of roasting and grinding on cell structure
My favourite part of doing a roasting course was watching green coffee beans turn into a caramel, chocolate-brown colour through a little viewing window while their powerful aroma filled the room.
Over a couple of short minutes, thousands of chemical reactions take place together with irreversible physical changes that allow us to extract the aroma and flavour locked inside beans.
Let’s look deeper inside a bean to see exactly how this transformation happens on a microscopic level.
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